If you own a smartphone, a smart watch, a smart TV, then you should also own a smart hand grip. This workout tool is small in size but has a big impact as it helps with strength and resistance training, and with building hand muscles. It has a counter that helps you keep track and an adjustable resistance from 10 kgs up to 60 kgs. This tool comes handy for weight lifters as it makes your wrists stronger and forearms stronger. With a stainless steel spring and a comfortable design, you can use this tool at a thousand different places.