This is a bag of good counters delivered quickly and efficiently.
My bag contained 252 counters with a minimum of 40 in each colour (blue, yellow, orange, red,purple and green). They're translucent but still clearly (!) coloured; the red and orange are a tad close in colour in low light. If size is critical, note that the counters are thin (perhaps 1mm) and mine are 18mm diameter rather than the claimed 20mm (the bag says 3/4 inch but they're nearer 11/16").
A teaching ideas booklet is included, it assumes they're used on an overhead projector and suggests a number of arithmetic and logic exercises.
For me, the counters are fine.