Product name: Magnet / Strong Magnet / Super Strong Magnet / Permanent Magnet / Iron boron strong magnetMaterial: Sintered iron boron strong magnetSurface treatment: 3 layer anti-corrosion platingDensity: ≥7.5 (g/cm3)Curie temperature: 350℃Working temperature: ≦80℃ N35 to N52 Grade MagnetsGenuine, High Quality Products 【 Product Material 】: Sintered neodymium iron boronMagnetic coating: nickel copper nickel three-layer treatment, with good rust prevention and corrosion resistance. The effect is better than those of single-layer nickel plating.【 Magnetization direction 】: Thickness magnetization 【 N S pole above and below 】Maximum working temperature: ＜ 100 ℃ Magnetization direction: Large surface magnetization. The NS pole is on both sides, not the side.Attention: Strong magnetism, be careful not to pinch your hands and store them at room temperature.Neodymium iron boron has strong magnetism and is currently a good magnetic material.In theory, suction is hundreds of times its own weight. [Purpose]Office, pin, paper clip adsorption;Salvage, magnetized water, engine oil filter;Door suction, screen windows, hanging keys, coin gathering;Advertising, calligraphy and painting, drawing paper, photos, drawings, and other whiteboards are fixed;Luggage, photo frame, carving, scientific experiments, industrial toys, homemade refrigerator stickers, gift packaging boxes;It must not be used for electricity meters, water meters, gas meters, or for illegal activities such as blocking license plates. Shopping Instructions1. Strong magnetic materials are hard, brittle, and have a strong magnetic field.Handle with care (especially large and thin sheets).When strong magnets attract and separate from each other or other iron objects,Be careful not to impact! Otherwise, it is easy to damage the magnet or pinch your hands due to collision!2. When strong magnetic attraction cannot be separated, please push horizontally and stagger, and do not forcefully pull or pry.3. Strong magnetism should be kept away from iron objects and easily magnetized items, such as monitors, bank cards, computers, televisions, mobile phones, etc.4. The strong magnetic field should be stored in a dry and constant temperature environment, separated and wrapped with plastic, wood chips, cardboard, foam, etc. Dimension： 3*2*2mm 4*4*3mm 5*2*2mm 5*5*1.5mm 5*5*2mm 5*5*3mm8*4*4mm 8*5*5mm 8*8*2mm 8*8*3mm 8*8*6mm10*2*2mm 10*3*3mm 10*4*2mm 10*4*4mm 10*5*5mm10*10*1mm 10*10*2mm 10*10*3mm 10*10*4mm 10*10*5mm 10*10*8mm11*11*2mm12*4*4mm 12*5*5mm 12*12*3mm 12*12*5mm 12*12*6mm14*14*5mm15*3*3mm 15*4*4mm 15*5*5mm 15*8*8mm 15*10*10mm15*15*2mm 15*15*3mm 15*15*4mm 15*15*5mm 15*15*10mm16*16*2mm20*2*2mm 20*3*3mm 20*5*5mm 20*10*10mm 20*15*15mm 20*20*2mm20*20*3mm 20*20*4mm galvanizing 20*20*4mm nickel plating 20*20*5mm20*20*10mm 20*20*15mm24*6*6mm25*3*3mm 25*6*6mm 25*10*10mm 25*25*3mm 25*25*5mm 25*25*10mm Package includes: Optional packaging quantity(The quantity of arrival depends on the data you actually purchase.) Payment: We accept Paypal only, It is fast, Easy and Safe. Payment must be completed within 7 days. PLEASE NOTE: S&H DOES NOT INCLUDE DUTIES, LOCATL TAXES OR ANY OTHER IMPORTATION FEES. Please list your special requests (color, packages, etc.) in the PAYPAL NOTES SECTION when you make payment. Shipping: We Ship to Worldwide. Orders processed within 24-48 hours of payment verification. it will take 15-25 days for delivery. but Customs will random inspection some parcel, so that’s why some parcel need more than four weeks to arrive. Shipping time is only estimated and not guaranteed. We only ship to confirmed PAYPAL addresses. Your PAYPAL address MUST MATCH your Shipping address. Package to USA will Shipping by E-Package with Tracking Number(7-15 Days to Delivered). To other Countries will shipping by Post Air Mail without tracking number(ONLY when the order is over 20USD will supply Tracking Number Shipping Way!)(15-35 Days to Delivered) Items are shipped via China Post Air Mail. Guarantee: Good Good quality. Buy with confidence! If you are not satisfied when you receive your item, please return it within 7 days for a replacement or money back. Please contact me before you return it. Not accept returning of electronic components. Full refund after we receive our original item, Note: Return shipping is to be paid by the Buyer. We maintain high standards of excellence and strive for 100% customer satisfaction! Feedback is very important to us. We request that you contact us immediately BEFORE you give us neutral or negative feedback, so that we can satisfactorily address your concerns.