These disposable pen needles can be used without having to pinch-up the skin prior to injection

Polypropylene backing: Protects against leakage and resists melting

Special Nu-Form 9" support belt 3-7/8" opening placed 4" from bottom

The High Output pouches come with a removable filter that reduces pouch ballooning and neutralizes odor

yet gentle adherence to the skin

Special 9" Support Belt 3-3/4" Center Opening, 54" Overall Length, Right, Extra Extra Large Sold By:1 Each These disposable pen needles canSpecial 9" support belt 3 3 4" center opening, 54" overall length, cool comfort elastic, contoured, right, extra extra large.