Washable Heating Cap for Oil & Scalp Therapy NEW if it has an external

if it has an external bottom layer or not: Yes

strong and durable

Its top has a large diameter for easy loading

It's called a spurtle

Super strong screws

Washable Heating Cap for Oil & Scalp Therapy NEW if it has an externalDeep Conditioning Thermal CapThis Electric Hair Steamer Cap for Deep Conditioning Treatments is made of soft, skin friendly non woven fabric thats gentle on your scalp and hair. The heat opens hair cuticles to allow deep penetration of oils and conditioners, helping repair damage and restore shineideal for curly or natural hair types. 2 Level Temperature ControlEnjoy safe and customizable care with a portable thermal heat cap with 2 temperature