Individually tested at 10,000V, guaranteed safe at 1,000V. Secure locking system. Set contains: Kraftform insulated handle, SL2.5 x 0.4mm, SL3.5 x 0.6mm, SL4 x 0.8mm, SL5.5 x 1.0, PH1, PH2, PZ1, PZ2, PH/S#1, PH/S#2, PZ/S#1 & PZ/S#2 VDE blades, and 89mm long VK 6.3mm, VK 8.1mm, DK & FL switchboard cabinet blades, 3.0 x 70mm voltage tester and a durable belt pouch.