Adjustable Mannequin Dress Form Dressform For Sewing & Apparel Design Standard Size : Ladies Sizes -- Petite, Small, Medium, and Large. (see the picture for size dimension data). Rotating dial wheels turn easily with one hand . Adjustments can be made in precise increments. Large Size: Adjustable Bust: 45-53" Waist: 38-46" Hips: 47-55" Neck & Back 15.5-17" Medium Size: Adjustable Bust: 39-47" Waist: 31-39" Hips: 41-49" Neck & Back 14-16"; Small Size: Petite: Adjustable Bust: 28-34" Waist: 22-29" Hips: 30-38" Neck & Back 12-15"