External metric size clips are made of steel. Retain positive retention of pulleys, sprockets, springs, and bearings on shafts and rods—handy kit for shop toolroom or toolbox. On hand when needed saves time and money. The plastic compartment box is easy to store. The Precision Brand® 255 Piece Metric E-Clip Asst contains: 35 – 1.2mm; 30 – 1.5mm; 30 – 1.9mm; 25 – 2.3mm; 20 – 3.2mm; 15 – 4mm; 15 – 5mm; 15 – 6mm; 10 – 7mm; 10 – 8mm; 10 – 9mm; 5 – 10mm; 10 – 12mm; 15 – 15mm; 5 – 19mm; and 5 – 24mm.