You are buying
Nickel plated
Bifurcated Rivets 
With an oval domed head 

Sizes include:
(Shaft diameter) x (Length under head) x (Split length) x (Head diameter)

No. 6 x 1 1/4"  -  5mm x 31mm x 12mm x 9.5mm
No. 9 x 5/16  -  3.9mm x 7.8mm x 5mm x 7.7mm
No. 9 x 3/4" - 3.9mm x 18.2mm x 12mm x 7.7mm
No. 11 x 3/8"  -  3mm x 9.5mm x 7.5mm x 5.5mm
No. 11 x 3/4"  -  2.9mm x 18.8mm x 12.1mm x 5.5mm
No. 14 x 7/6"  -  2.2mm x 11mm x 7.7mm x 4mm
No. 14 x 11/16"  -  2.2mm x 17mm x 7mm x 4mm

Please choose from the drop down menu to select the size and amount you require.

These are stock pictures to represent the type of rivet that you are buying, they may not be the actual size you select

These include free UK  postage