The set of long female headers for Arduino shields contains 5 x 6 pin, 10 x 8 pin, and 5 x 10 pin header.
These long female headers for Arduino shields are needed to stack multiple shields on top of each other and on an Arduino board. This is a set of 20 headers, enough for 5 Arduino shields. Every shield needs 4 headers. The shield headers are sockets (female) with the standard 2.54mm pin pitch, and 11 mm long gold plated leads.