SAFETY NUTS：The set contains four safety nuts. Color Black 80LBS (40LBS 2) + Kettlebell Handle (1.76LBS 2). 4 in 1 Adjustable Dumbbell Set. 1 DUMBBELL. Special Feature Adjustable Weight, Non-Slip. The connecting bar is made of 5mm thick steel tube + 20mm thick high quality foam, which is soft, non-slip and sweat-absorbent, and the curved design is ergonomic to fit your neck and reduce the pressure on your shoulders, making you more comfortable during exercise.
