If the trekking poles are to be used on asphalt, stone or hard ground, dirt with gravel and stones, breaches, etc., you should use trekking pole tips which reduce the metallic noise.
TANGO Sportswear trekking pole rubbers also serve to protect the pole and its tip from wear and tear and ensure a long service life.
They are made of Nylon, which resists very well and is very durable.
They are very tight and secure.