Based on this product's specifications, here are some alternatives and similar models
Mechanical pencil lead refill No name 0.7 mm GRAFIT 07-B (graphite)
Summary description:
Replacement graphite lead for mechanical pencils, No name GRAFIT 07-B with 0.7 mm diameter. Designed for standard 0.7 mm pencil mechanisms and general writing, sketching or technical drawing. Provides consistent graphite lines and fits compatible mechanical pencils. Pack details and hardness grade indicated by model 07-B.