The small square pots are soft and flexible and have base drainage holes.

 The larger 5" pots are strong and rigid and have both side and base drainage, making them perfect for bigger subjects or longer growth.

Suitable for use indoors or out - they won’t be damaged by low temperatures.

 2¾" wide x 3" deep (7cm x 7.5cm), capacity 0.26 litres compost.
 5" wide x 5" deep (12cm x 12cm), capacity 1 litre compost. 

 When starting off your plants in a propagator you’ll be able to fit in more square pots than you would round pots - as they will sit neatly side by side without any wasted space.