Barbie Club Chelsea Dress-Up Doll (6-Inch Brunette) in Cake Costume with Pet and Accessories, for 3 to 7 Year Olds Package quantity:1 The metal trapeze swing is

The metal trapeze swing is 3/4" diameter x 20 gauge thickness

and strokes per minute

There is more information in the 3rd image

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Barbie Club Chelsea Dress-Up Doll (6-Inch Brunette) in Cake Costume with Pet and Accessories, for 3 to 7 Year Olds Package quantity:1 The metal trapeze swing isYoung imaginations can tell so many sweet stories with Chelsea dolls and pets in themed costume fashions! This Chelsea dress up doll is super cute in a cake themed costume with a sweet print and 'frosting' ruffles. A cake topper headband and pink shoes put the finishing touches on her look, and her puppy friend tags along in a matching costume. An included charm keychain makes it easy to clip Chelsea doll to a backpack or clothing, so kids ages 3