Review title is NOT DOUBLE WALLED BUT......... [SEP] The negative is the description states that these jars are double walled. THEY ARE NOT. If your lotion or cream or balm is sensitive to heat, look elsewhere on amazon, as other places offer double wall containers that hold the same amount as these thin walled containers. The jars are fine for what they are,  and they will be OK for something else perhaps, but not for what I ordered them for because I needed what they advertised....DOUBLE WALL CONTAINERS!!! Also they can be a little tricky to open. Try holding the bottom part loosely as you turn the lid. To much pressure on the jar contorts the circumference of the jar and prevents the lid from unscrewing.<br />The positive part is the price is very good, shipping via prime is excellent, the inserts included area a nice inclusion and the jars are very white and opaque.