Different spring strenghts:

The AFIX springs come in 2 tensions, allowing for the most variety possible in frame dimensions:
- soft spring (default spring)
- heavy-duty spring

Soft spring (default):
Maximum dimension suggested: 70 x 100 cm
Characteristics: medium tension on posters, easy installation. Ideal for small and medium formats. Easy installation with posters
Our tips: the use of soft springs is recommended for small & medium formats, as well as with light paper material

Heavy-duty spring:
Maximum dimension suggested: 100 x 200 cm
Characteristics: Conceived to offer better tension for large format posters and heavier paper types (vinyl, laminated, etc.)
Our tips: only ask for heavy-duty springs in the case of large formats or two-sided posters (which tend to be heavier and require more tension). Installation is a little more difficult with heavy-duty springs