4 Pcs Barrier Terminal Block & 50 pcs Heat Shrink Butt Wire Crimp Terminal ConnectorStandard crimp and then seal heat shrink butt connectorsGuaranteed to hold the strong crimpspolyolefin tubing in outside and hot melt adhesive in insideAllows visual inspection, prevents corrosion, and provided a waterproof sealBarrier Terminal Block:Material:Metal, PlasticRated Value:600V 15APoles:6P (Dual Row)Size:7.2 x 2.2 x 1.6cm / 2.83 x 0.87 x 0.63 inch (L * W * H)TB seriers Barrier Terminal Block.Each pair of terminals is insulated from the next.Double row 6 plated metal screw connectors fixed position and plastic outer design.Color:BlackHeat Shrink Butt Connectors:Blue connector: 14-16 AWGMaterial: plastic,Coppercolor: bluePackage Contents:4 x Barrier Terminal Block50 x Heat Shrink Butt ConnectorsOnly the above package content, other products are not included.Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.