Tired of dull blades that tear through material instead of cutting it?
Ostrivo is a set of 10 ultra-sharp replacement blades for a knife, made from high-precision carbon steel. Each blade delivers a clean, even cut, while the included box keeps your workshop organized and protects the edges from becoming dull.
Whether you enjoy DIY projects at home, work with cardboard and carpeting, or carry out precise hobby projects, you’ll always have a fresh blade ready to use.

Why you’ll love Ostrivo:
- Ultra-sharp edge – high-precision carbon steel cuts cleanly and evenly with every movement.
- Quick replacement – the blade design lets you install a new one in seconds and get back to work.
- Long-lasting durability – the durable material retains its sharpness through many cuts.
- Safe storage – the yellow box protects the blades and your hands when they’re not in use.
- Enough for 10 replacements – one set will last a long time with regular use.

Specifications:
- Material: high-precision carbon steel
- Blade angle: 60°
- Package dimensions: 100 × 180.5 mm
- Colors: silver blades, yellow box
- Contents: 10 replacement blades + protective box
Put the Ostrivo box in your workshop drawer and enjoy a perfectly sharp tool whenever you need it.
At W Ionotix, every product starts with your everyday life.
We believe that a good product should be more than just an object: it should genuinely make everyday life easier and serve for years. That’s why before anything enters our offer, we thoroughly check the quality, materials, and craftsmanship.
- Carefully selected: We test every product before it is offered.
- Material quality: We choose durable and safe solutions
- Practical design: products that truly make everyday life easier
- Polish customer service: help in your language when you need it
- Risk-free shopping: 30 days for returns, no unnecessary questions asked
What sets Ionotix apart? Everything.
Why choose Ionotix?
- Quality that we check at every stage
- Individual approach to each client
- Products that truly make everyday life easier
- Stale expanding and improving offer
- A brand you can trust: hundreds of satisfied customers
- Fast shipping and risk-free shopping
Frequently Asked Questions
When will my order be fulfilled?
We process the order within 1–3 business days from the payment being received.
Where can I find the tracking number for the shipment?
We send the tracking number by email as soon as the package leaves our warehouse. With it, you can check the delivery status at any time.
Is the delivery free?
Yes, we ship all orders within Poland and the UK for free.
How can I contact customer service?
Write to us through the contact form or email. We respond within 24 hours, Monday to Friday.
What is your return policy?
You have 30 days to return the product without giving a reason. Just contact us, and we will guide you through the entire process.