We've tried the Tandem Sport Target Challenger (https://www.amazon.com/dp/B001O5EKVK?psc=1&ref=ppx_yo2ov_dt_b_product_details) and Spectrum Precision Volleyball Trainer (https://www.amazon.com/gp/product/B0036EZZZW/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1) but this is the best and most portable one. Also very easy to setup, adjust, and take down. Very sturdy so far.