Krumples Bop and Pop Musical Toy the anti-rebound bar helps reduce

the anti-rebound bar helps reduce movement in the event of a crash

Get even more "miles per gallon" with a variety of colors

zip it up and you're off and running

Our pre-started beginner crochet kits work for both righties and lefties

Extension sets are available separately

Krumples Bop and Pop Musical Toy the anti-rebound bar helps reduceDouble the fun, double the play! Krumples BOP & POP is the next evolution of the beloved Krumples sensory toy, now designed with two connected pieces that move in unisonwhen you squish one, the other pops up! Made from 100% food grade silicone, its safe for curious hands and mouths while providing endless tactile engagement. Perfect for babies 6 months and up, BOP & POP encourages motor skill development, cause and effect learning, and hours of