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The Latest Rage – A Hilchos Shabbos Challenge

By Rabbi Yair Hoffman

Fifth grade Bais Yaakov girls and Gedolei HaPoskim in Hilchos Shabbos finally have something very much in common. Both are very much excited about the new rainbow looms – albeit for quite different reasons.  For the Poskim, finally after all these years, the esoteric malachos of Maisach, Ossei Shtei Batei Nirim, Oreg and Potzaya, have practical everyday application that people are actually doing.

But let’s step back a bit to describe the latest craze that has hit not only the Bais Yaakov’s but even the boys Yeshivos.  There are miniature weaving looms in which colorful rubber bands are fitted onto and the practitioners of this new pastime are now weaving colorful rubber band jewelry.

The website states:

Rainbow Loom® is a kit for making super fun rubber band links, recommended for 8 years to adult. Younger kids are recommended to use the kit with adult supervision (not for children 3 years or younger). Be sure to check out the instructions page to see a variety of ways to use the kit.  Rainbow Loom® is so new that new patterns are still being discovered.

The new craze presents both challenges and opportunity. The challenges can be divided into three categories.  We will go through each one.


One challenge is that entire cadres of young girls and boys are now unwittingly violating four of the most obscure Av malachos of Shabbos.

Maisach is setting up the loom.  In our case it is setting up the rubber bands on the plastic mini-loom.   Other Poskim hold that it is only when the loom is set up on the horizontal side that Maisach applies.  Regardless, Maisach will be violated when the new jewelry is being woven.

Oseh batei Nirin in the theory is the setting up of the loom itself.  The loom used in this modern manifestation works differently.  It does not have the back and forth pedals, but according to some of the explanations found in the Rishonim, the loom used would be a violation of Oseh Batein Nirim too.  Some Poskim hold that the violation of Osei Batei Nirim involves merely passing the strings through the weaving machine.

There is also the Malacha of Oreg which is the actual weaving.  This can be violated even without the loom.  The Rainbow Loom offers that possibility too.  Indeed, from the fact that there are so many combinations, each different pattern can be a different violation of the above three Av Malachos.

The fourth category of prohibited Malacha involving weaving is called Potzaya.  This can involve removing the woven item from the loom, or removing one of the bands from the total bracelet.

Some would like to argue that because the main material being used is made of rubber bands, that it is temporary and not a violation of the weaving Malachos.  However, most rishonim understand that temporary means less than 24 hours.  Experience shows that this is definitely not the case here.


Believe it or not, there is another challenge here, unique to boys.  Some of the items being created constitute jewelry, not merely bands.  That being the case the prohibition against wearing articles of clothing unique to women may be violated here.  The prohibition is called “simlas isha” and may be tantamount to wearing a dress.  We don’t want our Yeshiva boys wearing dresses, so why are we letting them wear these decorative bracelets?


Finally, the last challenge involves Bitul Torah.  Many children are bringing these rubber bands and looms to school and doing it during classtime.  Yeshiva after Yeshiva are finding that this has become a very widespread problem.


Notwithstanding all that was said above, the Rainbow Looms also offer tremendous opportunity.  For the first time in close to two centuries, we now have an opportunity to teach the four most neglected areas of Hilchos Shabbos, these four av malachos, to an audience that is interested and familiar with the weaving processes.  This is an opportunity in teaching Torah that is almost unprecedented.  We should rush to grasp it.

The author can be reached at yairhoffman2@gmail.comrainbowloom

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Posted by on October 10, 2013. Filed under Breaking News,Jewish News,NY News,Slider. You can follow any responses to this entry through the RSS 2.0. Both comments and pings are currently closed.