Professional building block toys manufacturer and supplier
The set is employed to learn the concept of ultrasonic and how it comes.It can promote to understand the principle of ultrasonic and ultrasonic ranging, obstacle avoidance and the application of ultrasonic in actual life.
Item No: 6917
Package: Plastic bucket with transparent cover 42x30x20cm
Description: Building blocks with ultrasonic module
Block pcs: 555
For age: 6-14