Non marring socket/ wrench inserts helps to prevent damage to Chrome or anodised fixings. Ideal for classic and high quality vehicles. Sizes 12mm reduced to 8mm, 14 reduced to 10mm, 16mm reduced to 12mm, 17 reduced to 13mm, 19mm reduced to 15mm, 22mm reduced to 17mm. Prevents damage to Chrome and anodised bolts (Non marking). When working on high-end, show-quality classic vehicles or automotive displays, the fit and finish of the fasteners is just as important as the paint and bodywork. For example, chrome-plated fasteners can be damaged easily, especially when using standard metal spanners and sockets.