In Scapoli two types of bagpipes are built: the one with a key and the "zoppa" one (without key). The keyed bagpipe always has a double chanter, a single system and mouth feeding but it also shows its own peculiarities.

These are the characteristics of the instrument: the chanters of unequal length, divergent and conical. The short chanter (right) is equipped with 5 digitable holes (4 front, 1 rear), while the long chanter (left) has 3 plus the key hole; two drones, of which only one (the major) produces sound, while the second (the minor) is silent.

However, there are examples with a double sound drone but these are instruments which, although still built, no one uses in Molise anymore; double reeds on all sounding reeds;

bells that are screwed onto the end of the chanter spindle and which can be of two types: campagnola (with a widely flared pavilion) and vezzanese (with a less large pavilion).

The most common woods used for the construction of Molise bagpipes are olive and cherry. However, other plants deemed suitable are also processed. Many instruments are made with the mixed use of woods: cherry for the bells, olive for the chanter spindles and pear drones. For wineskins, the custom has become to use car inner tubes covered with fake fleece. However, occasionally and upon request, animal skins (goat or sheep) are also used.

The Molise bagpipes with key are made in several models characterized by pre-established conventional numbers.

The 25 model bagpipe is the one preferred by players today, but the 28 is also popular.

The intonations of the instruments correspond to the sizes, and therefore to the numbers.

The Molisana with key is an accompanying bagpipe, played in pairs with the ciaramella, which performs the solo parts of the musical pieces. The Molise ciaramella (biffera) has 9 digitable holes (8 front, 1 rear) and, as for the bagpipe, is built in various models of different sizes and intonations. The keyless bagpipe made in Lazio and Molise is called zoppa (cioppa in dialect).

The lame has a major chanter which - due to the absence of a key - is shorter than the one on other instruments which is equipped with this metal device.