Hi Amber! When Joel was a bub he LOVED his Jolly Jumper! It was probably the best toy he had. I think they are fine to use in moderation. I used to put him in it for up to 10 minutes a day. It caused no problems with Joel's spine and he developed completely normally. It was wonderful when I was trying to get stuff done. I'm looking forward to putting Kieran in it!

I have a pre-loved baby goods business and they are one of my best sellers. I don't have any left at the moment though