This electric mini lifter ELS420 is a kind of equipment that can lift heavy cargo in different shapes and sizes. The capacity is 420 KG which makes it a very practical accessory for heavy load stair climber CT420. With only 9 KG/PC self-weight, It is light and convenient to carry around and has a wide range of applications. Please note that this product does not include a battery, so you need to purchase it separately or use a common battery from CT420.