The edx education® 10M Wind Up Tape is a fun way to introduce your child to mathematical concepts such as measurement. Look for items around the house or the garden and compare and contrast how long, wide or deep they are! Measures in CM, MM and Inches.. Set includes: 10m Wind Up Tape. Size LxWxH: 11.5cm x 11.5cm x 3.2cm. Age: 5yrs+. MPN: 25220