Based on this product's specifications, here are some alternatives and similar models
Curl weight bar HMS Fitness GSL40 Maximum weight capacity 40 kg
Summary description:
The HMS Fitness GSL40 Curl weight bar is designed for effective arm workouts. It has a maximum weight capacity of 40 kg and a sleeve diameter of 2.8 cm, making it suitable for various weight plates. This bar is ideal for building strength and muscle in the biceps and triceps.