The nautilus instinct leg curl is a top quality leg curling strength machine that is ensured to provide you with a great workout as well as results like all of the nautilus range it features the lock n load which means that users can easily change the weight selection in no time at all there also many other things that the user can quickly adjust with great simplicity such as the easily adjustable back seat that has an easy up adjustment and also an adjustable thigh pad support that helps inc