Package Contains - 18PCS Shrink Film Sheets,11.4inch x 8inch / 29 x 20 cm Shrink Film Set - Made of PVC,0.3 thickness,one side frosted one side .Shrinks to 30% of its old size after heating Easy To Use - Bake 2 to 3 minutes at 320 degrees.Watch until it curls up,then flattens back out,THEN bakes another after it is flat.Take them out the oven and quickly press down with a heavy object to even out any little bumpy bits before it goes solid Semi Transparent Sheets - These sheets are wait to create any image to show your amazing genius idea,great for making keychains, earrings, necklace, DIY ornaments Great Gift Idea - Making charms with your kids as gift members,join this activity with your student,making gift for their parents, interesting, right? For Craft DIY Ornaments Warm Notes: Adult supervision is required during baking, recommended for children 13 years of age and older. The frosted-side up when baked is recommended. Do not touch the shrinking piece immediately after it's baked because it's very hot. Applying epoxy resin over the top of the shrinky can prevent color from rubbed off or smudged There may be slight deformation if the temperature is not high enough. Do not heat it on the metal or crude pottery Colour:Transparent Material:plastic Size:20x29cm Package Contents: 18 * Shrink Plastic Sheets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.