Li-blocks tse 3 bakeng sa li-trackers tse ngata (le lipapatso tse ka bang teng) webosaeteng ea bona.

So I found out they do provide trade-free goods: “Since 1994, Helen Keller International has provided free vision screenings for more than 2 million children in the United States and provided more than 300,000 of them with prescription eyeglasses to solve common vision problems.” – but they also provide access to some trade-based services: “We are improving access to high-quality, affordable cataract surgeries for poor and remote communities in under-served regions of Asia.” (https://www.hki.org/what-we-do/saving-sight/)

Ke 'nete hore ho monate hore ba fane ka liopereishene tsa cataract tse theko e tlaase bakeng sa batho ba futsanehileng, empa seo ha se mahala. Kahoo ha ke khone ho ba fa li-blocks tsa 5/5, le hoja ba bonahala eka ke mokhatlo o moholo o nang le sepheo se setle.