This is 18Pcs 18048 Yikong Parts R-Clips for 1:18 RC Model Cars.

Description:
Suit for RC Model cars
Materials: Metal
1 set: 6Pcs
Diameter: 1mm
Package Size: 10.5 * 5.5 * 1cm / 4.2 * 2.2 * 0.4in
Package Weight: 14g / 0.5oz
Adhesive Tap Package

Package List:
3 * 18048 R-Clips