Item Type: RC Helicopter Main Spindle_x000D_Material: Stainless Steel_x000D_Product Color: Silver_x000D_Weight: Approx. 5g / 0. 2oz_x000D_Applicable Model: for WLtoys K130 K200 RC Helicopter 1Applicable Model: RC helicopter main spindle is suitable for WLtoys K130 K200 RC helicopter. A good modification part for remote control helicopter. 2Stainless Steel Material: RC helicopter main spindle is made of stainless steel material, fine workmanship makes it durable, not easy to damage, and greatly extend the service life. 3Direct Replacement: RC helicopter main spindle is easy to install and disassemble, you can replace damaged or old equipment to ensure normal operation of your equipment. 4Perfect Fit: RC helicopter main spindle closely fits the original machine hole position with accurate shape and size design, having less stuck situations during use. 5Good Workmanship: Main shaft for WLtoys K130 RC helicopter, with exquisite workmanship, provides you great using experience.