Linear Guide Rail Set, SBR20 1800mm, 2 PCS 70.9 in/1800 mm SBR20 Guide Rails and 4 PCS SBR20UU Slide Blocks, Linear Rails and Bearings Kit for Automated Machines DIY Project CNC Router Machines V178 Is your office chair giving

Is your office chair giving you a tough time

Whisper-quiet drive for early mornings and late nights

15mm pure nickel stripes

Size: 39" x 198"

Dual Kit Advantage: Two 210-piece kits

Linear Guide Rail Set, SBR20 1800mm, 2 PCS 70.9 in/1800 mm SBR20 Guide Rails and 4 PCS SBR20UU Slide Blocks, Linear Rails and Bearings Kit for Automated Machines DIY Project CNC Router Machines V178 Is your office chair givingProduct Features SBR Linear Guide Rail Set SBR20 1800 mm Linear motion guide rail includes 2 x 70. 9 in 1800 mm length SBR20 guide rails and 4 x SBR20UU slide blocks. Dynamic Load Per Block: 882 N, Static Load Per Block: 1370 N. Durable & Long lasting The linear rail is made of carbon steel and aluminum with a chrome plated surface for rust resistance and high durability. Built in 4 aluminum slide blocks and ball bearings for smooth and unobstructed