Item descriptions: Material: zinc alloy Model: 3# 5# 8# 10# Sutiable: nylon zipper Type: non-lock head Quantity: 10 pieces/lot (minium purchase qty is 10) Tips: Measure the zipper tooth width to determine the modelZip Tooth width 0.4cm(#3 zip); Zip Tooth width 0.6cm(#5 zip & #7 zip); Zip Tooth width 0.7cm(#8 zip);Zip Tooth width 1.0cm(#10 zip);