A 2 pole Holland plug insert with a hook is a type of electrical connector commonly used in the Netherlands. Some of the key characteristics of this type of plug insert include:

1. 2 pole design: The 2 pole design refers to the number of electrical contacts present in the plug, which are used to transmit power from the electrical outlet to the device being powered. In the case of the 2 pole Holland plug insert, there are two electrical contacts.

2. Compatible with Holland sockets: The plug insert is designed to be compatible with electrical sockets commonly used in the Netherlands.

3. Hook design: The hook design of the plug insert allows it to be easily hung or attached to a convenient location, such as a wall or table, when not in use.
   

4. Durable construction: The plug insert is constructed from high-quality materials, such as plastic and metal, that are designed to withstand heavy use and exposure to the elements.

5. Safe and reliable: The 2 pole Holland plug insert is designed to be safe and reliable, with features such as a secure connection to the electrical outlet and proper insulation to prevent electrical shock.

In summary, the 2 pole Holland plug insert with a hook is a type of electrical connector that is designed for use in the Netherlands. It has two electrical contacts, is compatible with Holland sockets, has a hook design for easy storage, is constructed from durable materials, and is safe and reliable.