CraftbuddyUS 100pcs Silver 24mm Acrylic Cone Spike Studs Sew On, Stitch On, Stick on Embellishments 100 Acrylic Cone Spike Studs - Sew on/Stitch on/Stick on 24MM Color Silver Free Shipping Each Spike has a loop at the top to attach it securely onto fabric, leather and just about any other material.