Here's the kit, unboxed
The kit itself came with tray, soil disc, a water spritzer, and sample pack of seeds. I bought an extra box of seeds with the pea shoots* - that came with three envelopes of seeds and extra soil discs.
Seeds planted, tray suction-cupped to the window
In about 10-12 days, I shall be eating sprouts!!
*P. S. Although the packet says "Use Entire Packet", I didn't. It seemed like too much seed. I used half. I suppose I will spend more money that way - buying new soil discs, but I want to easily harvest these sprouts. I'll let you know how it goes.