It’s worth noticing how the OO Stool does such a great job of combining sustainability along with technology and a pinch of heritage. Made from a single board of bamboo plywood, the stool is CNC machine-cut in a way that integrates every single aspect of the stool into its design. Everything you need to build the OO Stool sits within that flat-packed jigsaw-puzzle of bamboo pieces, minimizing waste by using as much negative space as possible. The legs form the outside, while the dual-layered seat of the stool sits on the inside, with the negative space being filled by tiny rectangular pieces that help lock the stool in place, and even a bamboo hammer to help assemble the stool! The OO Stool uses absolutely no glue, screws, or nails… just really smart designing and Japanese joinery techniques. The two curved leg-components lock right into each other to form the four-legged base of the stool, while it takes mere minutes to gently hammer the seat in, piece after piece. Once constructed, the joineries are conveniently hidden away right under the seat, while the hammer itself could be used to disassemble the seat if you ever find yourself needing to move houses.