[Cutter Material] Made of carbide materials, ultra-hardness, super toughness, more wear and edge grinding wheel with ultra-fine polishing, sharper edge [Application] 30 degree blade should be recommended for fabric, thin cardboard and leather Suitable for mahogany, vinyl sheet, wood, silhouette cameo, faux leather, PVC color board, MDF and other precision relief. Letter knife length: 19 mm Top of cutter bar: 1.5 mm The top length of cutter bar is about 4 mm Handle size: 0.9 mm color: silver + black Material: tungsten steel Package Contents: 30 x 30 degree blades 2 x holder case blade Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.