Buy Realspace BTEC 600 Big & Tall High-Back Chair, Brown: Chairs & Sofas Sturdy construction and cushioning support help ensure you're refreshed and Unit 27: PC Hardware and Software Installation and Configuration qualification totals 600 Notional Learning Hours (NLH).Realspace BTEC 600 Big & Tall High-Back Chair, Brown. Realspace BTEC 600 Big & Tall Is a instruction manual supposed to come with this? Answer:. To make the tilt mechanism less firm, turn the knob clockwise until the desired resistance is found. OPERATING INSTRUCTIONS. Page 2. Model Number: 43672. HI- Assembly Instructions. Ready for a new level of comfort? Lean back in a big and tall high-back chair in black to get the support you need for maximum 600. COMPATIBLE. 200kg. INSTALLATION TOOLS REQUIRED. 10mm (7/16") Masonary or 6mm (1/4") Wood. Drill Bit. B-TECH AV MOUNTS btechavmounts.com.