Here's what other sites are saying:
The Rossignol T3 Dino is an easy-to-use screw-mounted junior binding. The simple open/close mechanism has a large hand grip making it kid-friendly even while wearing gloves. Features a wider heel-piece for more stability and is intended for use on non-NIS (or flat) X/C skis. This is an ideal lightweight and easy-to-use binding for junior skiers.
These manual bindings are simple for both kids and adults to operate and great for touring or beginning racing. Wide heel piece for added stability. Big handle makes it easy to lock and release binding even when wearing mittens. NNN compatible. Made in Norway.
Wide heel pieces on the Rossignol Kids T3 Dino Jr Cross Country Ski Bindings get your child started on the track with lightweight ease and awesome stability. The simple clip-in system is straightforward and easily locked in, even with a gloved hand. Wide stability means he spends more time skiing the track than sitting on it, and light weight reduces leg fatigue.