This 9/16" pair of double flared amethyst stone plugs has a flat back, and the front is carved to look like a rose. The wearable area is about 5/16" between the flares for all gauges.Organic body jewelry is hand made, so gauge, length, color and design may vary. Such differences are NOT considered a defect.The jewelry you receive may not be an exact match to what is pictured. However, you can expect that you will receive a well matched pair of items and that each individual piece within the pair is within .5 mm of stated size for jewelry up to 1/2" (12.5 mm) and within 1mm of stated size for jewelry larger than 1/2".