This is the Diecast masters Cat 1/50 374 Next Gen Hydraulic Excavator - Highline Series [85793].

Realistic metal tracks
Cabin Rotates 360°
Detailed cab interior, including operator
Fully Adjustable boom, stick and bucket
Realistic hoses and grab rails
Optional figurine operator
High Line Series, presented in collector tin
Approx Size: 25.5 x 9.5 x 11cm
Quality 1:50 Scale By Diecast Masters – 85793