Features: Our for titanium alloy with better hardness than stainless steel. High quality material, only 1/5 thermal conductivity of steel, so it refuse blocking while printing. Super heat break, can work in higher temperature than steel. Supper smooth inner hole for filament though, better than cheap ones in market. The inner wall of the tube is very smooth so that the filament can pass through and reduce clogging more easily. Specifications: Item Type: Heatbreak Throat Tube Application: V6 Remote Wire Feed Used for: 1.75mm Nozzle Model: MK8 Material: for Titanium Alloy Metal Item Size : Approx 30.5X6 mm/ 1.2X0.23in Quantity:2 Pcs Package Includes: 2X Heat Break Throat Tubes note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment.