OLFA Safety Cutter 17.5mm SK-4

Self-Retrating Safety Knife. 

Quality and safety certified product in Germany. 

For both right and left handed users. 

Good Design Award Product. 

Blade Refill: SKB-2. 

Blade is available in store as link below: 

https://www.bunkuya.com/products/olfa-spare-blade-skb-2-5b 

Made in Japan.

Video source: Olfa North America YouTube Channel