25 Pieces Upholstery Twist Pins Includes 25 pieces Clear Plastic Heads, Nickel Plated Steel Pin. Diameter of heads: 3/8", Length: 1/2". Diameter of heads: 3/8", Length: 1/2" Used for holding arms cover, slipcovers, bedskirts, doilies in place. Available in 25 pieces, 50 pieces, 100 pieces (in the other listings), This listing is for 25 pieces Diameter of heads: 3/8", Length: 1/2"