I think the JS Sparkles (Jammin Sam) are a close match, but if you want to be sure you can contact Jammin Sam and Precision Drum company to receive samples in order to compare their wraps to yours.

Precision sells the current version of that as produced by Delmar (as does Jammin' Sam but his less expensive JS sparkles may be a different product).

Silver sparkle is pretty foolproof. What you see are the reflective aluminum particles inside the wrap and aluminum tends to be the same silver color no matter what. The colored sparkle wraps use the same silver sparkles but they are seen through a tinted outer layer and the color of that outer layer can vary a bit batch to batch. Silver is unlikely to vary much (outer layer is just clear plastic) but it probably wouldn't hurt to get samples if you're matching to original drums.

I just ordered a bunch of silver sparkle from Precision on Friday.