Luminous,l was using the wrong word.
Bright orange handle and sheath.
Sheath stays in trouser knife pocket,knife in and out as used,not on ground or stuck in tree etc.
Handy being bright orange in as much as should it falk out of pocket in sheath while wiggling through a hedge, rolling under barb or doing the same over a Devon Bank,if l feel it gone it is easy to retrace the next morning and pick up.
The green or black ones are hard to see.
So hand on knife or in sheath at all other times as a rule.
Luminous tip tape a waste of time on my beach rods...