Dicker cocksheath is small but so rubbery-stretchy it does what you need: Add 1-1.5 inches to your length...and just enough more to your girth. The slim-fitter is just right if you want to be bigger...not too big. 

The fit slides onto you like a glove, the suede-like silicon finish is the softest plus-silicone blend with lush warm feel so fleshy it really feels like it's all dick, just a bit larger. 

Custom fit to your using included adjust fit bullet insert-slide to the head of the shaft for a discrete snugger custom fit, the insert is fleshy soft so it still feels like it's all you. 

Dicker cocksheath gives you a little more 
Slimmer, tighter fit sheath 
Extra-soft plus-silicone is fleshy velvety smooth 
Includes adjust fit insert for custom fit 
Cocksling base has smaller holes, stays on hard 

Measurements: 
Length: 7.5 inch (19 cm) 
Width: 1.5 inch (4 cm) -2.5 inch (6 cm) 
Depth: 1.5 inch (3 cm)