uxcell Black Red Plastic Coated Multimeter Test Lead Single Hook Clips 12pcs Product Name : Testing Hook;Application : Testing Work Total Size(Each) : 58 x 12mm/1.6" x 0.47" (L*Max.D);Hole Diameter : 4mm / 0.16" Hook Length(Max.) : 4mm/0.16";Color : Black, Red Material : Metal ,Plastic;Weight : 24g Package : 12pcs x Electrical Testing Hooks