Product never used, packaging damaged during transport. Unopened product, repackaged in our warehouses, in perfect working order, warranty available. Step 1: Check the model number of your current case under the blade (CE0536 or CE0523) Step 2: Choose the model that suits you. DID YOU KNOW? The model of the HU83 or VA2 blade (with or without groove) is of no importance if you plan to replace it with yours. Step 3: Order the model that suits you, once received nothing could be simpler! You will need a drift punch or a hammer and a nail. Follow our assembly video to replace your old case with the new one and you're done! Ideal product to replace a broken/worn case, or one with damaged buttons. Electronic circuit and battery not included (they must be recovered from your old case)