MYO-3000 Removable 21 1/4″ x 16 1/4″ stainless steel tray Hand operated friction lock height adjustment/dual post 50 lb. weight capacity MYO-3001 Same as MYO-3000 except 19 1/8″ x 12 5/8″ stainless steel tray MYO-3002 Same as MYO-3000 except 25″ x 20″ stainless steel tray