- 2g of Ninjaflex filament - 4x M3 25mm Screws - 7x M3 16mm Screws - 4x M3 1.6mm Low-Profile Nuts - 5x 3x8x4mm Bearings - 1x 1/8" Straight Push PTFE tube In Pneumatic one-touch fitting - 1x 1/8" tap drill bit - 1x 5x16x8mm Metal Bearing (688-2RS, comes with original extruder) - 1x 16x8mm Spring (comes with original extruder) Bearings sources: http://www.aliexpress.com/item/Miniature-bearing-high-speed-motor-bearing-ABEC-5-Z2-693ZZ-3-8-4-693-ZZ-693/2026771642.html http://www.amazon.com/693ZZ-R-830ZZ-619-Skateboard-Bearings/dp/B00ZHSRCFQ/ref=sr_1_1?ie=UTF8&qid=1440649304&sr=8-1&keywords=693+bearing