Product Material: These golf cleats are made of high quality responsive rubber and metal, smooth polished surface reduces clogging, and flexible tips increase comfort and durability. Function : A must-have item for golfers, creates a lower platform and reduces the distance between your feet and the fairway for good stability and balance. Easy to set up: you can use them in replacement for your golf shoe spikes, it's a great accessory and easy to install with slotted pliers. Structural design: When the spike needs replacing, the visible wear indicator C becomes fixed. Dual durometer construction helps provide golfers with traction, stability and comfort. Eco-Friendly: Reduces damage from streaks on the greens. Material Type Plastic, Metal feature: 1. Dual durometer construction helps provide golfers with traction, stability and comfort. 2. The Stinger is designed to provide superior comfort without sacrificing traction. 3. The special design makes it quick and easy to replace the toe clip. The plastic material provides superior comfort and provides stability and support from the ground. 4.Easy and easy to use. Eco-friendly design minimizes marks on greens. Specification: Color: Yellow + Black. Material: Plastic, Metal. < p>Screw diameter: about 5mm 0.2inch. Overall size: about 28*11mm (D*H). Package included: < p>Package includes: 20 nails.