When my son was a baby before he could sit up on his own, I loved our Bumbo chair that allowed him to sit up. So it was alarming when I started seeing voluntary recalls from the company about adding a safety strap. If you own a Bumbo, you can request for a Free Safety Strap Repair Kid from the company through their website here or by calling 1-866-477-5144.
The restraint belt will help prevent babies from falling out or getting out of the seat. I just ordered mine for baby #2. Make sure to pass this on to parents of infants.