The Manhole Cover Keyway Protector is a set of 4 plastic protectors designed to fit over manhole cover keyways. Made in the UK these black protectors are 19mm in height, 45mm in length, and 25mm in width, there is an approximate 2mm lip around the top of the cover to enable easy removal. The covers provide barrier to prevent debris. These have been designed and 3D printed by myself with PETG.
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