The document lists various engineering design kits and their descriptions sold by Passive Plus Inc. It provides over 30 kits with different part number prefixes that cover a range of capacitor values from 0.1-2.0 picofarads to 100-1000 picofarads for surface mount components in sizes 0201, 0402, 0603, 0805, 1111 and 2225. It also lists adjustment stick kits with part number prefixes TSD for adjusting capacitors. Contact information is provided for quotes, orders or more information.