Heat shrink tubing kit 270 pieces various sizes Premium Material: The heat shrink tubing is made of high quality PE material, which is odorless, non-toxic, has excellent low temperature resistance. With fast and durable shrinkage it can provide strong protection for wires and cables. Easy To Use: These 3x Shrink Ratio Heat Shrink Cable Sleeves Wrap On All Shapes Of Wire. Wide Applications: These heat shrink tubing are suitable for electrical insulation, wire bundles, mechanical protection, wire splicing, daily repairs and more. Features Materials: PE Package size: 19.6x13.2x3.6cm Color: Red, Black Quantity: 270 Pcs