... streaming air flow for cleaner, smoother cutting. Product Description : Mower Line for Lawnmowers 1. Specification: 1.0mm, 1.3mm, 1.6mm ... , 30m, 2lb, 3lb, 5lb etc. 3. Shape: Round, square, pentagon, and other special across section.4. Color: White, blue, green, yellow ... poly bag, card board, bobbin.Length, specification, color of trimmer line and designs of mark on packing are as customer's request.