Frosted block finial for 1 1/2 inch diameter indoor curtain rod. Available in two colors in stock (black and dark brown), ready to ship and custom colors in 5-7 days. It can be used indoor only. Charleston collection by Design Elements. Indoor Use Only : Length: 3 5/8" : Width: 2 1/2" : Material: Acrylic w/ Steel Collar : Finish Shown: Black & Acrylic : Priced and Sold (as/by): Each : Availability: Black and dark brown ships in 1-3 business days, custom colors in 5-7 days. Priced each.