In fact, you can fit your fingers in and throw it like any ordinary bowling ball. Inside the ball is a threaded shaft, with a weight screwed onto it. To turn the ball on, the key is easily removed and vice-versa to turn if off.
6% Incline 300 lbs Walking Pad Under Desk Treadmill | Quiet portable mini treadmill for home office with app & remote control. 100% pre-assembled and slim space-saving design. Global Recycled Standard
THERUN Walking Pad with Handle Bar, 2 in 1 Under Desk Portable Treadmill | 0.6-6.2 mph, 2 in 1 Folding Handle Bar, Quiet Core Motor, Space Saving Design, Remote Control, Portable & Compact for Home Global Recycled Standard
Superun Walking Pad with 6% Incline, Under Desk Treadmill for Home Office, 3 in 1 Portable Walking pad Treadmill with Remote Control and LED Display, 2.5HP Quiet Mini Treadmills, 300 lbs Capacity Global Recycled Standard
THERUN 8% Under Desk Walking Pad with Incline for Home Office with APP | 2.5 HP Walking Pad Treadmill,265 lbs Capacity, Belt Stabilizer Hook, LED Screen with Remote Control,Portable Walking Pad Global Recycled Standard
THERUN Walking Pad with 40" Longer Belt Under Desk Treadmill 300LBS Weight | 2.5HP, 300LBS, 0.6-3.8MPH, 40" Longer Running Belt, Portable, Remote Control, Adjust Speed,Easy to Use, Smart LED Display Global Recycled Standard
LifePro PacerMini Compact Walking Pad Treadmill with Incline – Under Desk Walking Treadmill for Home Mini Apartment & Office Portable Low Profile Quiet Electric with Remote Control & LED Display | 3 MPH Max Speed 220 lb Capacity, Remote Control &a
