On the basis of V2, we continue to use the shape of the V4 tamper compactor. In addition, Comes with a pack of both 0.3mm and 0.4mm needles, for a total of 9 holes. Needles can be easily loaded/unloaded to your liking at any time. SPECIFICATIONS: Main Body Material: Anodized Aluminum CNC; Needles Material: 304 Stainless Steel; Internal axis: ABS Total Length: 103mm; Diameter: 31mm; Wire Length: 50mm THE SET INCLUDES: 1 - WDT Distribution Tool V3 9 - 0.25mm custom needles 9 - 0.3mm custom needles 1 - WDT Stand