They should be:
-about 8x4mm
-Double domed
-Bolt imprint on one side
-Score on the other side (may have two -scores that are not aligned, forming a cross)
-electric blue
If these are the same, then they are fantastic. Similar to the pink hearts, JA's, spades etc. Very strong and rushy, got me off my ass and dancing. Wobbly vision, mild visuals etc.
One of the best around. But, remember to test them as they are good candidates for fakes.
8)