Sturdy and Durable :3D printer tools are made of stainless steel.Resist-rust and Non-.Easy to twist and flexible.Long service time and no harm to the nozzle.Easy to twist and flexible. Precise Package and Portable:0.35mm, 0.4mm cleaning needles separately in two plastic round tubs.0.15mm,0.25mm, 0.5mm cleaning needles separately in three transparent bags.And a empty round tube for free .Easy to identify with number labels.Easy to take out and back in a protective transparent storage box. Solve Clog Problem:Cleaning 3D Printer nozzles and solve the filament clog problem .Remove excess filament quickly.A must have to 3D printers.Tweezers are anti-static . Size and Wide Usage:Cleaning needles come in 0.15mm, 0.25mm, 0.35mm, 0.4mm and 0.5mm.Suitable for most of sizes nozzle and 3D printers like , -10, 2, 3.Also good for cleaning such as throat and gear. Colour:Silver+black :metal Size:129 x 70 x 22mm Package Contents: 10 x 0.35mm cleaning needles 10 x 0.4mm cleaning needles 2 x 0.15mm cleaning needles 2 x 0.25mm cleaning needles 2 x 0.5mm cleaning needles 2 x tweezers Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.