Fun and functional sensory toys that pop, stretch, and connect making these pop tubes the go-to toy for playtime. These open ended toys are made for all busy little fingers but are also exciting ADHD toys for kids. Autistic toys like these pop tubes provide tactile stimulation, fine motor skills and auditory feedback making them the perfect sensory toys for autistic children. Length before telescoping is 20cm, Length after telescoping is 70cm.