They have a ring for a cable or wires to pass through for tension relief
See the datasheet here
Qty - 6
Shipping Information:
I will combine multiple wins to reduce shipping cost for you. All items ship via USPS. I will also ship to most countries in the world. Contact me for a shipping quote outside the US.
Payment Information:
I accept PayPal
Warranty:
Unless otherwise noted in the auction's description, all items are sold without warranty. Please contact me to resolve any issues you may have when your item arrives.