Topping for flask

An overspace on the flask made of strong and elastic silicone allows for mounting on almost any type of flask.
Thanks to the application of the overlay we can extend the flask by 2-3 cm.
The solution is useful when applying the telescope on the side of the eyepiece.
The depth that slides into the flask is a maximum of 60mm.
Aesthetic performance does not throw in the eye. The cap will not destroy the flask. Dimensions: Height x Width x thickness 118mm x 85mm x 44mm