Sumitube B2(3x) ultra thin wall 3:1 ratio shrink tubing supplied on 55 metre reels. Suitable for electrical installation (600V), protection of joints and splices and general wire and cable identification. The tubing is flame retardant and has excellent flexibility and insulation properties. The tubing can be printed using a wide range of Kroy printer using the optional snap-in tubing guides and shrink tube ribbon