【High-quality material】: The round screw spacers are made of high-quality nylon plastic, which has good temperature resistance, oil resistance, corrosion resistance and tear resistance, and ensures a long service life.

【14 Sizes】: 40 pieces 3x7x3; 20 pieces 3x7x5; 20 pieces 3x7x6; 20 pieces 3x7x8; 20 pieces 3x7x10; 20 pieces 3x7x12; 20 pieces 3x7x15; 40 pieces 4x7x3; 20 pieces 4x7x5; 20 pieces 4x7x6; 20 pieces 4x7x8; 20 pieces 4x7x10; 20 pieces 4x7x12; 20 pieces 4x7x15. A total of 320 pieces, suitable for most screws.

【Easy to store】: All nylon washers are packed in a plastic box with size label. This allows you to easily identify the different types of washers and select the size you need. This allows you to easily repair bent or sunken outlets that are not properly installed.

【Powerful features】: These plastic spacers are lightweight, rustproof, sturdy and insulated. Simply measure the length you need for your screws, then choose the appropriate spacers that are shorter than the screws to keep the panel flush against the wall.

【Wide Applications】: Suitable for micromotors, automotive parts, electronic products, instruments, machinery, stationery, automation equipment, toys, hardware accessories, etc., widely used to protect LEDs on circuit boards.