600Pcs 4:1 Heat Shrink Tubing Kit – Dual Wall Adhesive Lined Waterproof. Upgrade your electrical projects with this premium 600-Piece Ventronic 4:1 Heat Shrink Tubing Kit. Featuring a high-demand 4:1 shrink ratio, this dual-walled tubing shrinks down to a quarter of its original size, providing an incredibly tight, secure fit over irregular shapes, large plugs, and heavy-duty connectors.
