This cool gadget for surfers was on 'Shark Tank' — and now it's on sale

TL;DR: Head out to the waves with a Slyde Handboards Grom Soft Top for $49, a 28% savings as of Sept. 9.  When Ashton Kutcher and Mark Cuban throw their support behind something, you know you've got a gem. Back in 2016, Slyde Handboards was featured on Shark Tank, where they got a large investment from Kutcher and Cuban and since then, business has exploded. And for a limited time, you can snag a sweet deal on their beginner bodyboard — the Grom. A great tool for beginners looking to dip their toes into wave riding, Slyde's Grom Handboard is engineered with first-time body surfers in mind. The goal? To help you ride waves safely and smoothly with added lift and speed. It's made with super-advanced construction, an ultra buoyant EPS foam core, and extra sticky EBS top skin with a buttery smooth slick bottom. By simply holding on with one hand, the Grom propels you up above the waves, offering a longer and faster ride than a basic boogie board. Read more...More about Surfing, Shark Tank, Mashable Shopping, Cool Gadgets, and Culture