200 Pieces Rubber End Caps Flexible Screw Thread Bolt Protector Caps X9B88699\n\nHigh quality materials - These nuts are made of vinyl flexible rubber material, which is wear- and -. The thread protector has excellent flexibility and insulation performance, as well as a sturdy structure that can effectively absorb impacts.\nProduct size - Rubber end cover combination kit includes 9 sizes (2 x 16mm, 3 x 17mm, 4.5 x 17mm, 6 x 17mm, 7 x 17mm, 8 x18mm, 9.5 x 17mm, 12 x 25mm, 20 x 27mm)\nEasy to use - choose the appropriate nut inner diameter and length. It is recommended to choose a nut slightly smaller than the outer diameter of the product to be protected. You can trim the thread protector safety cover to the desired length.\nWidely used - circular end caps are perfect for use with metal chair heads, furniture, tables, bicycles, boats, fence railings, and can also cover screws and bolts. It can be applied to any circular tube and provides additional protection to prevent damage to the)