This is the 11641st most frequent Polish word.
klockowe
"Klockowe" means "block-like" or "related to blocks."
In this sentence, 'klockowe' describes the style of the toys, relating to 'klocki' (blocks).
Jego zabawki są wykonane w stylu klockowym.
His toys are designed in a blocky style.
'Klockowe' here pertains to the shape of the pieces, derived from the word 'klocki'—indicating that they are block-like.
Na podłodze leżały elementy klockowe do zabawy.
On the floor lay block-shaped pieces for playing.
Here, 'klockowe' modifies 'hamulce' (brakes), indicating the type, specifically 'disc'.