... Great Improvements. Sliding Working Table With The Scale, Disassemble Topper Wheel, Motor Overheat Protection.....210 Meat Bone Saw / Band ... Bone Band Saw, Sliding Working Table With The Scale, Disassemble Topper Wheel, Motor Overheat Protection..Bos -210S specification :Model:BOS ... don’t worry it may be twisted too tight.Disassemable Topper Wheel Easy to clean & maintainence,Smooth inner frame design ...