Features 1、Made of high quality material, durable and long service life 2、Widely used in wire connection, solder joint protection and insulation, etc. 3、Different size of heat shrink tubing can meet your needs 4、Including 450pcs colorful heat shrink tubing, convenient to use 5、There is a box which you can store and convenient to carry Specification Item Type: Heat Shrink Tubing Color: Colorful Package List 10 X Black (13mm) Heat Shrink Tubing 15 X Black (10mm) Heat Shrink Tubing 15 X Red (7mm) Heat Shrink Tubing 20 X Blue (6mm) Heat Shrink Tubing 20 X Blue (5mm) Heat Shrink Tubing 35 X Red (4mm) Heat Shrink Tubing 35 X Black (4mm) Heat Shrink Tubing 35 X Green (3.5mm) Heat Shrink Tubing 35 X Blue (2.5mm) Heat Shrink Tubing 70 X Yellow (2mm) Heat Shrink Tubing 70 X Red (1.5mm) Heat Shrink Tubing 90 X Black (1mm) Heat Shrink Tubing