Crazy Contraptions: Build Rube Goldberg Machines that Swoop, Spin, Stack, and Swivel: with Hands-On Engineering Activities (Build It Yourself)

ASUS ROG Strix GeForce RTX™ 5070 OC Edition 12GB GDDR7 Graphics Card (PCIe® 5.0, 12GB GDDR7, HDMI®/DP 2.1, 3.2-Slot, Axial-tech Fans, MaxContact Design, Phase-Change GPU Thermal pad, Aura sync)

aFe (49-08047-P) Scorpion 2-1/2" Aluminized Axle-Back Exhaust System with Polished Tip for Jeep Wrangler JK V6-3.8/3.6L Engine

Compatible with SKF TMFT36 Bearing Installing Tool Bearing Fitting Tool Kit Bore Size 10–55 mm

Amana Tool - 47601 Router Arbor with Hex Nut, Washers & Ball Bearing 5/16-24 Nf Dia x 7

Infinity Tools Mega Rabbet Router Bit Sleeves & Bearings, 1/4" Internal Diameter (6-pc. Bearing Kit)

Amana Tool - 47733 Ultra-Glide High Performance Ball Bearing 1 Overall Dia x 1/4 Inner Dia

ECSiNG 2pcs Ball Bearings 605040-65 Compatible with DeWalt D28770 DWM120 DWE6000 D28770K

Bell & Gossett 189134LF Bearing Assembly with Impeller by Bell & Gossett