INVACARE CORPORATION Can be used with the left or right hand by adjusting the base. Comes with a locking collar that reduces rattles. Silver-vein finish. Dimensions: height adjustment 29.25-38.25, Medium Base footprint 10.25x6, Large Base footprint 13x7.75. Product weight: Medium Base 1lb13oz, Large Base 2lbs10 oz, weight capacity:250lbs. 3 year limited warranty.