Lumenok H nocks are not included- They must be ordered separately. This adapter is an Outsert designed to be fit to any 4mm ID shafts that are between .218" and .256" on the OD. It accepts the Lumenok H that is equipped with a replaceable battery. These adapters weigh between 17 and 22 grains depending on the size of the shaft that they are machined to fit. ?IMPORTANT! These adapters are custom machined to fit your particular arrow. We must know the Manufacturer, Model and Spine of the shafts that you will be installing them on. Please select the Manufacturer, Model, and Spine from the Drop Down menus to ensure your order is filled with the correct size adapters. If you need Lumenok H nocks included, please select the quantity and color desired and add them to your cart. Includes 3 H Nock Adapters If you do not see your arrow in the options, contact us. Lumenok H nocks are not included- They must be ordered separately Order Here The adapters are supplied in multiples of 3 and come with glue, wraps and detailed instructions for installation. If you need more than 3 please increase the number of 3 packs that you require.