Seriously flawed bar/slider/lock design
Here is my experience after replacing 2 sets in 10 days.
It has a cheap plastic bar. Here are the design flaws of this dumbbell
0. These dumbbells don't/will not have LONG life since the plastic used in bar/base will crack soon.
1. I received the dumbbells with broken cap. If you open the top cap (with red slider) you will see the entire bar/handle design is flimsy made with cheap plastic.
2. The red plastic slider will jam often or doesn't slide smoothly. The sliding/locking mechanism is based on thin white plastic strip black plastic belt and black strip (below the red slider). They are flimsy and will not last longer much. You will need to replace bar often.
3. The base to keep the dumbbells and adjust weights is also plastic. You can't just drop dumbbells if you are used to hex dumbells etc. You will have to align weights using the base to adjust. Till now this aligning process has frustrated me.
4. Lifecore may not have Quality Assurance team since I have already exchanged 2 dumbbells because of this sliding/locking/bar problem.
I wish Lifecore had made this 5/10 lbs METAL bar that could last life time. Any adjustable dumbbells should be designed to last life time. Hex dumbbells are like that. Otherwise there is no point in spending so much money on this.
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