






The Curve | Knock Box With Oak or Iroko Knock Bar
Redefine your coffee ritual with The Curve, a knock box that embodies elegance in motion. Inspired by gentle arcs and sculptural silhouettes, The Curve brings a softer, more fluid aesthetic to your brew station — without compromising performance. Its rounded contours and smooth matte finish create a calming presence, while the thoughtfully integrated oak/iroko knock bar delivers precision and durability with every use. Whether you're perfecting your morning espresso or hosting a weekend coffee session, The Curve adds a tactile, design-forward touch to your daily routine.e perfect addition for those who crave a touch of innovation in their daily brew routine.
Product Dimension & Weight:
1. Rectangle - 10 x 16 x 14.5cm (Capacity: 10-12 shots) ~290g
2. Square - 16 x 16 x 14.5cm (Capacity: 20-22 shots) ~430g
Oak/Iroko Knock Bar Dimension:
1. Rectangle - Diameter 2.52cm x Length 10cm
2. Square - Diameter 2.52cm x Length 16cm
Pairs well with

The Curve | Knock Box With Oak or Iroko Knock Bar
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 48 hours on weekdays.
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Shipping Information
- Ships within 1-4 business days.
- Ships in our fully recyclable wrapping and boxes. -
Customer Support
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We are available Monday to Friday (10am-6pm GMT)
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FAQ’s
Visit our FAQs page to find answers to common questions.
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Contact Us
We'd love to hear from you. Our team is here to help. Visit our contact page to send us a message.
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FAQs
Please read our FAQs page to find out more.
What materials are your coffee tools made from?
All our products are made using PLA, a plant-based, biodegradable plastic that is more eco-friendly than traditional petroleum-based plastics. We chose PLA not only for its sustainability but also for its strength, finish, and vibrant colour options.
Are 3D printed tools durable enough for daily use?
Yes! Our products are rigorously tested under real home barista conditions. PLA, when printed and finished correctly (as we do), offers excellent durability — ideal for espresso prep tools like knock boxes and WDTs.
Can I customise the colour or engraving?
Yes, we offer a range of colour options, and custom engraving is available on select items (like knock boxes or wdt tools). Just choose your preferences on the product page.
Do your knock boxes fit all espresso machines?
Our knock boxes generally come in two to three sizes — and if your espresso machine has a large portafilter, you may want to consider sizing up.
We recommend checking the product dimensions listed on the page and measuring your space before purchasing to ensure the perfect fit for your coffee station.
Are your knock boxes dishwasher safe?
Our knock boxes are not dishwasher safe. As they are 3D printed using PLA (a plant-based material), exposure to high heat and steam in dishwashers may cause warping or surface damage. We recommend hand-washing with mild soap and room-temperature water, then drying thoroughly.