Big collection of heat shrink tubing,8 Specifications, 2 Colors: Black + Red Supplied internal diameter : 2.0mm, 2.5mm, 3.5mm, 5.0mm, 6.0mm , 8.0mm, 10.0mm, 13.0mm minimum Fully shrunk internal diameter : 1.0mm, 1.25mm, 1.75mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm, 6.5mm maximum Flexible after shrinked, Shrinkage Ratio: 2:1 (will maximum shrink to 1/2 its supplied diameter) Covers all gauges of wires youll need in RC hobbies and many other applications. Specification: ColorBlack, Red Material: Polyolefin Tensile strength : 10.4 Mpa Minimum Shrinkage Temp : +70C Full Shrinkage Temp : +110C maximum Operating Temperature : -55C to +125C(-67F to 257F) Dielectric strength : 15 kV/mm Manufacture specification : ISO9001 Flammability : Flame Retardant Approvals : UL Approved Supplied format (round or flat) : Product is supplied flat Cutting method : Scissors or sharp knife Shrinkage Ratio : 2 : 1 (will maximum shrink to 1/2 its supplied diameter) Package includes: 8 Tube Specifications:2.0, 2.5, 3.5, 5.0, 6.0, 8.0,10.0, 13.0 (Quantity x Supplied Internal Diameter x Single Length )---Supplied internal diameter 40pcs x 2.0 x 30mm (20pcs black + 20pcs red) 40pcs x 2.5 x 60mm (20pcs black + 20pcs red) 20pcs x 3.5 x 60mm (10pcs black + 10pcs red) 16pcs x 5.0 x 60mm (8pcs black + 8pcs red) 10pcs x 6.0 x 60mm (5pcs black + 5pcs red) 8pcs x 8.0 x 100mm (4pcs black + 4pcs red) 8pcs x 10.0 x 100mm (4pcs black + 4pcs red) 8pcs x 13.0 x 100mm (4pcs black + 4pcs red) Total 150pcs x Heat Shrink Tube