Excellent Material: The football boots studs are made of excellent material, which has good wear-resistant performance. Threaded Design: The football boot stud comes with threaded design for fixation, stable and firm. Easy Installation: The football boot stud features the easy installation, convenient and practical. Design: The football boot stud comes with design, no burden for running. Good Workmanship: The studs spare parts enjoy good workmanship, which can withstand the long-term use. Colour:Transparent Material:nylon Size:15mm Package Contents: 12 x shoe replacement spikes 1 x Shoe Spikes Wrench Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.