Hole Diameter 0.16 inch Plastic Toggle Spring Stop Single Hole String Cord Locks 20 Pcs Product Name : Cord Lock;Size about : 10 x 7 x 20mm / 0.4" x 0.3" x 0.8"(L*W*H) Hole Diameter(each) : 4mm/ 0.157";Material : Plastic Color : Black Net Weight about: 20g Package Content : 20 x Cord Locks