Simple Machines Gear Rack Model Pack Size_12 Wall-mountable beech wood draining rack

Wall-mountable beech wood draining rack measures 20 x 20 inches and holds up to 90 pieces of labware inverted for post-wash drying in chemistry labs

Two rectangular slots accept square or round rods up to 16 mm in this aluminum alloy multipurpose clamp holder

Twelve-slot natural wood buret rack organizes vertical buret storage and simultaneous titration setup in chemistry and analytical laboratory classrooms

Thirty-atom organic chemistry model set with 24 short and long bonds

and four rotary controls

Simple Machines Gear Rack Model Pack Size_12 Wall-mountable beech wood draining rackRotation to linear gear rack simple machine model converting circular gear motion into straight line rack travel, demonstrating the mechanism behind crankshaft pistons and steering racks.