# Straight Line Apparatuses The Constrained Ball Straightens You and Your Pen Up By Meghan Young | Published 2010-08-14 | Art & Design Source: Trend Hunter, https://www.trendhunter.com/trends/constrained-ball References: [yankodesign](http://www.yankodesign.com/2010/08/11/a-straight-line/) & [gihawoo](http://www.gihawoo.com/) I can't draw a straight line for the life of me, so I think the Contrained Ball would be a great investment for me and my future children. I honestly feel that a [steady hand](https://www.trendhunter.com/trends/break) is a gift, and if you're not born with it, then there's bound to be an invention that will help -- and now there is. Designed by Giha Woo, the Contrained Ball features a [rubber gasket](https://www.trendhunter.com/trends/enso-tape) that when fitted to a [writing utensil](https://www.trendhunter.com/trends/twist-pen), it helps maintain a straight line. ## Trend Insights (Trend Hunter) - Score: 5.7/10 - Popularity: 94% | Activity: 68% | Freshness: 8% - Audience gender: 70% men, 30% women - Primary generations: Millennial, Gen X - Top markets: North America, Europe, Asia ## Categories [Trend Hunter](https://www.trendhunter.com/trends) > [Art & Design](https://www.trendhunter.com/artdesign) ## Key Themes ### What Makes This Trend Stand Out - **Steady Hand Assistance:** The invention of the Contrained Ball highlights the trend of steady hand assistance tools that help maintain straight lines. - **Precision Drawing Tools:** The Contrained Ball is part of the trend of precision drawing tools that aid in achieving precise lines and shapes. - **Improving Handwriting Skills:** The Contrained Ball is an example of the trend towards tools that help improve handwriting skills by providing guidance for straight lines and curves. ### Sectors Adopting This - **Stationery and Writing Instruments:** The Contrained Ball is a disruptive innovation opportunity for the stationery and writing instruments industry, offering a unique tool to improve accuracy in drawing and writing. - **Education and Learning:** The Contrained Ball presents a disruptive innovation opportunity for the education and learning industry as it can be utilized to teach handwriting and drawing skills, particularly in early childhood education. - **Product Design and Accessories:** The Contrained Ball opens up a disruptive innovation opportunity in the product design and accessories industry, as it caters to professionals and enthusiasts seeking precise lines and shapes in their designs. ## Related on Trend Hunter - [Stone-Grip Conical Pencils](https://www.trendhunter.com/trends/aluminum-sphere.md) - [Ergonomically Curved Writing Utensils](https://www.trendhunter.com/trends/curva-pen.md) - [Gamified Writing Devices](https://www.trendhunter.com/trends/otona-no-yaruki-pen.md) - [Striking Writing Tool Concepts](https://www.trendhunter.com/trends/zenith7-desk-pen.md) - [Off-Kilter Desktop Accessories](https://www.trendhunter.com/trends/concept-pen-holder.md) - [Unique Writing Instruments](https://www.trendhunter.com/trends/graphite-paintbrush-writing-instrument.md) - [Floating Futuristic Writing Utensils](https://www.trendhunter.com/trends/levitating-pen.md) - [Pattern-Drawing Dual-Tip Pens](https://www.trendhunter.com/trends/colored-curve-pens.md) - [Ergonomic 3D-Printed Pens](https://www.trendhunter.com/trends/3dprinted-pen.md)