The Terrier Adapted Tricyle features a broad wheelbase and well-balanced handling coupled with options to ensure good positioning. Distinctive sporty appearance with comfort and support provided by the extra-wide padded saddle. This is complimented by the adjustable high-low bend handlebars and seat adjustments which ensure optimum position to pedal and control the trike. A rugged trike for children from 4-1/2 years, the Terrier has 16" (40.6cm) wheels and a caliper brake with a parking brake mechanism. The Terrier has a frame-folding mechanism option which allows the frame to be folded for transportation and storage. Inside leg 16-1/2" to 21-1/2" (41.9cm-54.6cm). Maximum weight capacity is 100 lbs. (45.4kg). When ordering options, please note that the Back/Trunk Support provides security to prevent the user from falling off the trike, whereas the In-Line Trunk Support provides snug fitting support to the trunk. Only one of these options is necessary.