Shower Head Nipples This item was sourced on www.MFG.com as one of the items in an RFQ in USA for Grommets Buyer is in search of off the shelf shower head nipples. The material is typically either silicon or neoprene. The outer diameter is roughly 5/16" and overall length is probably 1/2". Please contact Buyer through MFG.com messaging system with any questions. Part Part Number: 1313524264765 Material: Thermoplastic Material Grade: Technical Specifications Category:Grommets Dimensions0.0 x 0.0 inch Annual Usage:5000.0 The following suppliers (machine shops, fabricators, casters, molders, 3D printing, CNC machining, etc.) provide manufacturing services for the machine tool industry, automotive industry… For more information visit www.MFG.com. MFG.com analyzes all engineered parts and RFQs for improved manufacturability and to ensure quality and a quick quoting experience. Grommets: Grommets are eyelets used to strengthen or protect openings.