Based on this product's specifications, here are some alternatives and similar models
Training Seat HMS LTS25 with Thigh Lock — Lat/Seated Attachment for Leg Exercises
Summary description:
HMS LTS25 training seat is a lat/seat attachment designed for use with strength training stations, featuring a thigh lock to stabilize the user during leg and seated exercises. It provides a padded seating surface and adjustable fixation for safe positioning, suitable for targeted muscle work such as leg presses, seated rows, and other lower-body or back-focused movements.