I purchased the Barbie Multi-Size Inline Skate as a Christmas gift for my daughter 2 years ago. It was a great deal because Toys 'R Us was having a clearance and I got them for $9.99. My daughter loved using these skates.
I purchased the Small size (10/11/12) for her since she was wearing size 11 at the time. It has and adjustable liner and boot, buckle closure, padded liner with a flowered Barbie pattern and 64 x 24 mm wheels with 608Z bearings.
No tools are required to change sizes! There is a purple knob at the back of the boot that you pull and twist. Then, you pull out the entire boot to the size you want and twist the knob again to lock. It was very easy to do!
She used them until last summer as now she is a size 13/1 and they were too small. They have held up to all of her falls and bumps and still look good. I never had any problems with the wheels or buckles. The Barbi Multi-Inline Skate is truly 'The Skate that grows with you!"