Specifications: Cross stitch hoops with adjustable thumb screw to help keep your fabric taut. Practical, convenient, simple but beautiful. Hold fabric taut for cross stitch and embroidery projects. Good DIY tool, stitch your dream. Type: Embroidery Hoop Material: Bamboo Quantity: 1Pc Features: Adjustable, Useful, DIY, Cross Stitch Sewing Tool Size Details [Our Size 13cm] Inner Dia.: 12.1cm/4.76", Outer Dia.: 13.5cm/5.31", Thickness: 0.7cm/0.28" (Approx.) [Our Size 17cm] Inner Dia.: 16cm/6.30", Outer Dia.: 17.4cm/6.85", Thickness: 0.7cm/0.28" (Approx.) [Our Size 21cm] Inner Dia.: 19.1cm/7.52", Outer Dia.: 20.5cm/8.07", Thickness: 0.7cm/0.28" (Approx.) [Our Size 24cm] Inner Dia.: 22cm/8.66", Outer Dia.: 23.8cm/9.37", Thickness: 0.9cm/0.35" (Approx.) [Our Size 27cm] Inner Dia.: 25.4cm/10", Outer Dia.: 27.4cm/10.79", Thickness: 1cm/0.39" (Approx.) Notes: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Package Includes: 1 x Embroidery Hoop